Getting to Know Plants — Science STD 6 — Question

Give one natural source of light.

Why is the quantity of water in a pan decreases when we keeps on heating it?

Is steaming of idli batter to make idli a reversible change? Give reasons to support your answer.

Where is food stored in plant and in what form?

How do the shipmen find the direction even when north pointing pole star is not visible?

Which are the nutrients essential for our body?

How does earthworm gets grip on ground?

What is germination?

Fans move air around, creating a cooling sensation. It might seem strange to use a fan to dry wet clothes since fans usually make things cooler, not warmer. Normally, when water evaporates, it requires heat, not cold air. What do you think about this?

Mark ‘True’ or ‘False’ for the following statement:
Electric current can flow through metals.